Monitoring the growth of polyoxomolybdate nanoparticles in suspension by flow field-flow fractionation

被引：53

作者：

Chen, BL ^{[1
]}

Jiang, HJ ^{[1
]}

Zhu, Y ^{[1
]}

Cammers, A ^{[1
]}

Selegue, JP ^{[1
]}

机构：

[1] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2005年 / 127卷 / 12期

关键词：

D O I：

10.1021/ja045067r

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We follow the evolution of polyoxomolybdate nanoparticles in suspensions derived from the keplerate (NH4)42[MoVI72MoV60O372(CH3CO2)30(H2O)72]·ca.·300H2O·ca.·10CH3CO2NH4 ({Mo132}) by flow field-flow fractionation (FlFFF) to monitor the particle-size distribution in situ, atomic force and high-resolution transmission electron microscopy (AFM, SEM, and HRTEM) to confirm particle sizes, inductively coupled plasma-optical emission spectrometry (ICP-OES) to determine the Mo content of the FlFFF-separated fractions, and UV/visible spectroscopy to confirm the identity of the species in suspension. We observe the formation of 3-75-nm polyoxomolybdate particles in suspension and the dynamic growth of {Mo132} crystals. Copyright © 2005 American Chemical Society.

引用

页码：4166 / 4167

页数：2

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